public class ZhaiZhiJie6
{
    public static void main(String[] args)
    {
        Employee1 e = new Employee1(123456,"zhangsan", 8000, "R&D department");
        System.out.println(e.Return());
    }
}

class Employee1
{
    private int num;
    private String name;
    private int salary;
    private String dep;

    public Employee1()
    {

    }

    public Employee1(int num) {
        this.num = num;
    }

    public Employee1(int num, String name) {
        this.num = num;
        this.name = name;
    }

    public Employee1(int num, String name, int salary, String dep) {
        this.num = num;
        this.name = name;
        this.salary = salary;
        this.dep = dep;
    }

    public String Return()
    {
        return "num: " + this.num + ", name: " + this.name + ", dep: " + this.dep + ", salary: " + this.salary;
    }
}
